I need help choosing between the correct words.

1. Mastery of English rules (lead, leads) to improvement in speaking and writing.
**leads

2. Each of the runners (try, tries) to outdo the other.
**tries

3. Nicole likes to play the piano, to march in the band, and (to sing, sing, singing) in the chorus.
**to sing

Are my answers correct?

Thank you!!

1 answer

All are correct. :-)